Update app.py

app.py

@@ -29,13 +29,17 @@ def create_video(video_file_id, audio_file_id):
     video_download_link = f"https://drive.google.com/uc?export=download&id={video_file_id}"
     audio_download_link = f"https://drive.google.com/uc?export=download&id={audio_file_id}"
 
+
+# 환경 변수에서 모델 버전을 읽어옵니다.
+    MODEL_VERSION = os.getenv("MODEL_VERSION")  # 기본값 설정
+
     payload = {
         "audioUrl": audio_download_link,
         "videoUrl": video_download_link,
         "synergize": True,
         "maxCredits": None,
         "webhookUrl": None,
-        "model": "sync-1.5.1-beta"
+        "model": MODEL_VERSION  # 환경 변수를 사용
     }
 
     headers = {"accept": "application/json", "x-api-key": API_KEY, "Content-Type": "application/json"}